Using Ubuntu in the SCS environment

• based on Amar Phanishayee's guide
• revised for lucid (Ubuntu 10.04) 64-bit
• Other resources
  • The Usable Mac
  • Setting up OpenAFS to talk to CMU's network
  • MIT's Debathena Project

Before setup

Backup (required)

• Kerberos files: /etc/krb*

Reversible installation (optional)

• Shrink the Windows NTFS volume using Disk Management
• Make a normal or LVM partition
• Install a boot loader in /dev/sda4 instead of /dev/sda

• Setup chain loading; in OLD/boot/grub/menu.lst, add

  title New Linux
    savedefault
    rootnoverify (hd0,4)
    chainloader +1
  

During setup

UNIX account name

• Use your SCS/andrew account name for making the main UNIX account
• Will be referred to as USERNAME

After setup

Kerberos

• $ sudo apt-get install krb5-user krb5-clients
• $ sudo cp -a OLD/etc/krb* /etc/

• In [libdefaults] of /etc/krb5.conf, add/modify

  ticket_lifetime = 1d
  renew_lifetime = 30d
  allow_weak_crypto = true
  

• $ kinit; klist

AFS

• $ sudo apt-get install openafs-client openafs-krb5 openafs-module-dkms dkms build-essential
• $ sudo dpkg-reconfigure openafs-client
  • AFS cell = cs.cmu.edu

• $ In /etc/openafs/cacheinfo, increase the cache size (unit is KB)

  /afs:/var/cache/openafs:2000000
  

• $ aklog; tokens

• $ ls /afs/cs.cmu.edu/user/USERNAME/
• $ aklog andrew.cmu.edu; tokens
• $ klog.afs -c andrew.cmu.edu; tokens
• $ ls /afs/andrew.cmu.edu/usr*/USERNAME/

Automatic Kerberos/AFS authentication/renewal

• $ sudo apt-get install libpam-krb5 kstart
• $ krenew -b -p /home/USERNAME/.krenew.pid -K 60 -t
• Convenient when added in System - Preferences - Startup Applications
• Manually execute kinit when the renewal duration terminates

SCS printers

• Find printer name, location, and model
• System - Administration - Printing - New - Other - lpd://(cyan|magenta|yellow).srv.cs.cmu.edu/PRINTERNAME
• Check "Duplex Unit"
• TODO: automatic or more convenient way to register printers

NTP

• $ sudo apt-get install ntp

• In /etc/ntp.conf, comment out existing servers and add

  server PARSLEY.SRV.CS.CMU.EDU
  server SAGE.SRV.CS.CMU.EDU
  server ROSEMARY.SRV.CS.CMU.EDU
  

SCS backup

• Obtain the backup client from /afs/cs.cmu.edu/project/operations/Backup-Client/TiBs-Install/tibs2501.x86_64.Linux.tar.gz
• $ sudo apt-get install xinetd
• Extract tarball
• $ cd tibs2501
• $ ./install.sh
• Client hostname: gsXXXX.sp.cs.cmu.edu
• Server hostname: tibs4.srv.cs.cmu.edu (may vary)
• Request client.auth and client.dat file (TODO: not sure how to get these for the latest client distribution)
• Contact the Help Desk for the backup. See details.

Terminal server script

• TODO
• Source: /afs/cs.cmu.edu/local/rdesktop/common/scripts/006/bin/ts

Misc

ATI GPU driver

• $ sudo apt-get install fglrx
• $ sudo aticonfig --initial

Audio

• No special action needed
• But if you can't hear anything, check Volume Control - Playback and Volume Control - Switches

Compiz

• $ sudo apt-get install compiz compizconfig-settings-manager
• System - Preferences - Appearance - Visual Effects - anything other than None
• $ ccsm

Adobe Flash Player

• $ sudo apt-get install flashplugin-installer

Korean language support

• $ sudo apt-get remove ttf-wqy-zenhei
• $ sudo apt-get install ibus-hangul ttf-alee ttf-unfonts
• $ im-switch -s ibus